Knowledge Center Catalog

Impact of post‐flowering heat stress in winter wheat tracked through optical signals (Record no. 62558)

MARC details
000 -LEADER
fixed length control field nab a22 7a 4500
001 - CONTROL NUMBER
control field 62558
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20200911205407.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 200602s2020 xxu|||p|op||| 00| 0 eng d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1435-0645 (Online)
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1002/agj2.20360
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 15774
Personal name Sebela, D.
245 10 - TITLE STATEMENT
Title Impact of post‐flowering heat stress in winter wheat tracked through optical signals
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Madison, WI (USA) :
Name of publisher, distributor, etc. ASA :
-- Wiley,
Date of publication, distribution, etc. 2020.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Accepted article
520 ## - SUMMARY, ETC.
Summary, etc. Increasing temperatures can severely affect wheat (Triticum aestivum L.) production, particularly when it coincides with the grain‐filling period. Heat stress induces rapid senescence resulting in early maturity and shortened grain‐filling period. In this study, the applicability of in vivo chlorophyll fluorescence (Chl‐F) and chlorophyll index to track rate of senescence in flag leaves and spikes exposed to heat stress were investigated. Seven winter wheat varieties were exposed to post‐flowering heat stress using growth chambers [35/15 °C (heat stress) and 25/15 °C (control) day/night] and unique field‐based heat tents (imposed +6 °C higher than ambient). Effective quantum yield of photosystem II (PSII) (QY) was recorded temporally in flag leaves and spikes, and compared with in vitro chlorophyll‐a (Chl‐a) concentration and non‐invasive estimation of chlorophyll and flavonoids index. Time point indicating the start of senescence (change‐point, CP) for QY was advanced by 0–8 and 0–6 d in flag leaves and spikes, respectively, under heat stress. In the chamber experiment, sustained heat stress induced accelerated decline of QY, particularly in wheat cultivars Larry and WB4458. Stronger positive relationship between days to senescence in spikes and thousand kernel weight indicated an extended period of assimilate supply from sink compared to the source tissue, during grain filling. Capturing heat stress‐induced changes in photosynthetic pigments and QY at high temporal frequency presents an effective phenotyping approach for testing genetic diversity in large‐scale field experiments involving different crops.
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 3729
Topical term or geographic name as entry element Flowering
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1971
Topical term or geographic name as entry element Heat stress
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 2104
Topical term or geographic name as entry element Winter wheat
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 15775
Personal name Bergkamp, B.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 15776
Personal name Somayanda, I.M.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 3758
Personal name Fritz, A.K.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 3875
Personal name Jagadish, K.S.V.
773 0# - HOST ITEM ENTRY
Place, publisher, and date of publication Madison, WI (USA) : ASA: Wiley, 2020.
Related parts In press
Title Agronomy Journal
International Standard Serial Number 1435-0645
Record control number 444482
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Dewey Decimal Classification
Koha item type Article
Suppress in OPAC No
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
09/11/2020   09/11/2020 Article Not Lost Dewey Decimal Classification     Reprints Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 09/11/2020

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